Delphine L.M. Holopherne1, David R. Hodgson, Reuben J. Rose and Anne Couroucé
Equine Performance Laboratory, University of Sydney, Camden NSW 2570, Australia ; Pégase-Mayenne, département de Médecine du Sport, CH de Laval, 53015 Laval Cédex, France.

Introduction

Heart rate (HR) is a major variable frequently determined when evaluating athletic horses exercising on the track or treadmill (Foreman et al., 1990 ; Rose and Hodgson, 1994 ; Couroucé, 1999). Therefore, a reliable means of measurement of HR is of great importance.

Results

There was a highly significant correlation (p<0.001) between the Polar HRM and the telemetric ECG determination of HR (r = 0.995 ; n = 233 - Fig. 5). When HRs below and above 200 bpm were considered separately, the correlation coefficient was lower for HRs greater than 200 bpm, with the Polar HRM giving slightly higher values when compared to the ECG.

Conclusion

The Polar HR meter provides a non-invasive and convenient means of assessing HR during exercise, with improved accuracy at HRs below 200 bpm. This device can be used effectively on horses exercising on the treadmill, track, when being ridden or in harness.

Availability of such a reliable device is important, as measurement of HR during submaximal exercise is one of the mainstays for assessment of fitness (Persson, 1983 ; Couroucé, 1999), work load evaluation and detection of subclinical disease that may impair perfomance (Couroucé et al., 1986 ; Erickson et al., 1987).